Geometrical image compression with bandelets

Erwan Le Pennec; Stephane G. Mallat

doi:10.1117/12.509904

23 June 2003 Geometrical image compression with bandelets

Erwan Le Pennec, Stephane G. Mallat

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.509904
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

Abstract

This paper introduces a new class of bases, called bandelet bases, which decompose the image along vectors that are elongated in the direction of a geometric flow. This geometric flow indicates the direction in which the image grey levels have regular variations. The image decomposition in a bandelet basis is implemented with a fast subband filtering algorithm. Bandelet bases lead to optimal approximation rates for geometrically regular images. For image compression, the bandelet basis geometry is optimized with a fast best basis algorithm. Comparisons are made for image compression with wavelet basis.

Citation Download Citation

Erwan Le Pennec and Stephane G. Mallat "Geometrical image compression with bandelets", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.509904

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